import fs from 'fs';

const readStream = fs.createReadStream('./aaa.txt', {
    start: 8, 
    end: 22, 
    highWaterMark: 3
   });
   
readStream.on('data', (data) => {
    console.log(data.toString());
    readStream.pause(); 
    setTimeout(() => {
        readStream.resume(); 
    }, 2000); 
});
